contrast loss when encoding from h264 yuvj420p to mpeg4 yuv420p
|Reported by:||sperate||Owned by:|
|Blocking:||Reproduced by developer:||no|
|Analyzed by developer:||no|
When trying to encode from ".mov" files from a camera to avi (mpeg4 or libxvid) the output movie colors seemed dull.
I figured out it was a catrast loss.
How to reproduce:
% ffmpeg -i input.MOV -b:v4000k output.AVI or % ffmeg -i input.MOV -b:v4000k -vcodec libxvid output.AVI ffmpeg version N-49610-gc2dd5a1 Copyright (c) 2000-2013 the FFmpeg developers built on Feb 5 2013 13:20:59 with gcc 4.7.2 (GCC) running on Windows XP
I get rid of the problem by trying to enhance the contrast with
then figured out that just using the mplayer filter without modifing the contrast gave the best result
It seems to be a color space problem fixed with this filter but there must be a better way of getting rid of this contrast loss ???
Change History (10)
comment:1 Changed 4 years ago by sperate
- Cc email@example.com added
- Version changed from 1.1.2 to git-master
comment:2 Changed 4 years ago by cehoyos
- Cc firstname.lastname@example.org removed
- Component changed from FFmpeg to undetermined
- Keywords contrast loss removed
- Priority changed from important to normal